Remco Engineering makes several many different configurations
of regeneration modules for regenerating ion exchange columns.
The two basic types are stand alone systems with pumps, tanks,
valves and controls, and retrofit modules that convert existing
manual systems to state-of-the-art automated ones.
Stand Alone Systems (SAS)
The stand alone systems such as the P-SIXtm regeneration module
are fully integrated, skid mounted systems that regenerate individual
columns automatically. These are best used on smaller, mobile
columns (1-5 cu. ft.) that are moved to the regeneration module,
attached with quick disconnects, regenerated, then moved back to
the point of use.
The advantage of these systems is that one module will regenerate
many columns per day. This allows you to segregate streams and
capture different ions on different types of resin. You can even
regenerate chelated and DI resins with the same system. Multiple
programs can be built into one system and a control panel selector
controls which regeneration cycle is run.
Automations advantage is obvious. Manual systems rely on the
operator to determine how much is enough. Each cycle is different
depending on how the operator feels and how much he has to do.
With an automatic system, you get consistent results and consistent
savings in chemical usage.
The retrofit style systems feature an integrated valve stack and
control module that are mounted by the columns which are permanently
attached to the valve stack. These systems control the complete
system and insure proper regeneration of the columns. These systems
are available for chelated resin system and DI simplex and duplex
Our state of the art retrofit systems are designed for shops that
have large existing columns that were either installed as a manual
system or as an automatic system without microprocessor control.
Taking the operator out of the loop makes regeneration a snap.
Just push the button and go to lunch. The system automatically
regenerates the column(s) and then goes back on line. When not
regenerating, the system monitors pH and level in your feed tank,
controls the pumps, media filter, and many other functions. These
are all built into the existing program.
Power Purge(tm) regeneration is a unique feature with Remco
Engineering's systems. We air purge the columns between cycles
to increase the contact efficiency of each portion of the regeneration
cycle. We do not try to "push" water out of the column
with regenerant and "push" regenerant out with water.
This results in huge volumes of regenerant being created. By air
purging the columns, the regenerant stays concentrated and can
be easy isolated to a small volume.
The diverter valve assembly -
We use modular construction techniques as much as we can to insure
that we can build and sell our systems at a reasonable cost. Our
diverter valve (valve stack) assembly is a good illustration of
this philosophy. All but one of the valves to control the flow
through the system are assembled in one unit that you mount near
the columns and control panel. This complete valve stack mounts
on three short pieces of unistrut. The valves are air operated
so it takes little time to hook up the air lines and it is easy
to check and see if they are operational.
The Control System -
Our systems uses a microprocessor to control the valves and interlocks.
The control system is mounted in a Nema 4x fiberglass enclosure.
We feature all air operated valves controlled by manifolded solenoid
valves mounted in the main control panel. The main control panel
also houses the level control board, circuit breakers, power latching
relay, and all motor controllers. Our system features fully automatic
and manual control of the regeneration cycle. Optional systems
can fully automate the process where an operator is called if
Regeneration is initiated with one button as is backwashing the
media filter. Once the regenerant tanks are full, select either
backwash column A or column B with the front pushbutton and then
let the system work. Three to four hours later, depending on the
system capacity, the system automatically returns to the correct
state. One column or column pair is always on line during regeneration.
No further operator intervention is required.
Remco Engineering Features ..............................................Remco
Air "blow down" of resin columns ........................................Minimizes
regenerant and water usage
Low water usage during regeneration ...................................Adds
little to overall water usage
One button regeneration process ..........................................Little
operator knowledge required
Microprocessor based controller ..........................................Reliable
automation, computer ready